The Algorithmix NoiseFree is a DirectX/VST Plug-In that effectively removes broadband noise while still excellently preserving the audio quality of the original signal.

NoiseFree automatically removes or reduces any kind of constant background noise like hiss, surface noise, hum, air-conditioning equipment or camera sound.
Due to the Algorithmix proprietary, psycho-acoustically optimized noise reduction algorithm, NoiseFree efficaciously preserves timbre, ambience, and low-level details of the original signal, as well as highly reduces the appearance of artifacts.

On one hand, it can be used for high-resolution re-mastering tasks. On the other hand, it is a real weapon in cleaning up critical speech recordings for forensic purposes.
One very common problem in the daily business of an audio engineer is the struggle against a noisy signal. The standard methods of noise extraction by means of filters do not work if spectral components of noise overlap the desired signal. In such situations, the only solution is to use sophisticated signal processing algorithms to suppress unwanted noise in a much more intelligent way.

The NoiseFree DirectX/VST PlugIn effectively removes broadband noise from pre-recorded audio material. It has been designed to perfectly cover a wide range of applications: from the high-quality de-noising of valuable music treasures, to cleaning location recordings for film from environmental noise, even the treatment of critical forensic material recorded at a very poor signal-to-noise ratio and/or in reverberate environment.

Typical tasks for NoiseFree include removal of tape-hiss, surface noise of old records and optical soundtracks, broadcastwax cylinders, broadcast noise, microphone and preamp noise, as well as enhancement of conversations and interviews that lack intelligibility.

Unlike other systems, the NoiseFree DirectX/VST PlugIn works virtually without artifacts when using the correct settings for all parameters.

The de-noising process can work based on either the built-in white noise profile or a recorded noise profile. The unique Learn algorithm allows recording a noise sample from virtually any part of the audio material, even if there is no noise-only portion available. A sophisticated 5-band Noise Profile EQ is provided for modifying the shape of noise profiles and smoothing them for optimal performance.

Using only two sliders and a few presets you can get respectable results within minutes. The signal scope helps to properly adjust the Threshold. The unique Differ function allows monitoring of the signal part being removed in the de-noising process, which helps optimize the setup.

The advanced parameters Ambience, Recovery and Decorrelation allow fine tuning NoiseFree to differentiate between real noise and sharp signal transients. The Chase function, mainly designed for speech de-noising, automatically detects any fluctuations in the background noise and adaptively adjusts the noise profile according to these changes.

NoiseFree works impeccably with sampling rates up to 384 kHz. Thus it is perfectly suitable for high-resolution DSD post-processing. Since the CPU requirement for the NoiseFree DirectX/VST PlugIn is quite low, you can change and optimize all parameters while listening to the audio material in real-time.

ScratchFree
DirectX/VST Plug-In that effectively removes clicks, crackles and any other transient noises with virtually no artifacts and no degradation of the original signal

Clicks and crackles are inseparable companions of old vinyl and shellac (78 rpm) records. Before re-mastering to CD they have to be removed and the remaining gaps have to be reconstructed properly.
The ScratchFree DirectX/VST Plug-In copes with any kind of transient noises, perfectly preserving the audio quality of the original signal.
The ScratchFree DirectX/VST Plug-In effectively removes clicks and crackles from old vinyl and shellac (78 rpm) records and cleans up audio recordings tainted by switching noise, static discharge, digital cross-talk, or thyristor buzz.

Unlike other systems, the ScratchFree DirectX/VST Plug-In works virtually without artifacts when using correct settings for all parameters. It includes an excellent de-crackling algorithm preserving timbre, ambience, and low-level details in the original signal.

The de-scratching algorithm consists of two main parts: the de-clicking module and the de-crackling module. While the de-clicking module is used to remove severe clicks from old shellac and vinyl records or switching noise originating from cross-talk or improper setups of digital audio equipment, the de-crackling module removes any remaining small clicks and crackles.

ScratchFree is extremely easy to use. With only three sliders and a few preset buttons you can get respectable results within minutes.

The signal scope helps you to find ideal settings for the DeCrackler. The advanced parameters Width, Smooth, and DePlop are useful for minimizing the appearance of artifacts. The unique Differ feature allows intuitive parameter settings. You can switch between the output signal and the input/output difference, i.e., the part of input signal removed by the de-scratching algorithm. Normally, this differential signal should not contain any audible parts of the original audio material that you want to preserve.

ScratchFree provides pre-defined application profiles (Type). They preset the internal parameters and external advanced parameters to help you in typical restoration situations: digital spikes, shellac (78 rpm) or vinyl. In addition to its main application, the removal of clicks and crackles, the ScratchFree DirectX/VST Plug-In effectively diminishes any kind of distortion caused by signal overload (Clipping).
Since the CPU requirement for ScratchFree is very low, you can adjust and optimize all parameters while listening to the audio in real-time.